Warning

0x1021

Battery cluster cell undertemperature alarm (level 1).

1 Devices that report this code

FLS-ES232LC-SEnergy storage system↗ view on device

0x1021Battery cluster cell undertemperature alarm (level 1).Warning— level 1

Cause

Cell minimum temperature < 5°C.

Recommended fix

Send faults externally. Recovers when Temp_min > 10°C.

Source:FLS-ES232LC-S.pdf

Compiled from official FelicityESS user manuals. Always consult your device manual and a qualified technician before performing repairs.